git.sur5r.net Git - i3/i3status/blob - src/config.c

   1 #include <sys/stat.h>
   2 #include <stdio.h>
   3 #include <string.h>
   4 #include <stdlib.h>
   5 #include <ctype.h>
   6
   7 #include "i3status.h"
   8
   9 /*
  10  * Reads the configuration from the given file
  11  *
  12  */
  13 int load_configuration(const char *configfile) {
  14         #define OPT(x) else if (strcasecmp(dest_name, x) == 0)
  15
  16         /* check if the file exists */
  17         struct stat buf;
  18         if (stat(configfile, &buf) < 0)
  19                 return -1;
  20
  21         int result = 0;
  22         FILE *handle = fopen(configfile, "r");
  23         if (handle == NULL)
  24                 die("Could not open configfile\n");
  25         char dest_name[512], dest_value[512], whole_buffer[1026];
  26
  27         while (!feof(handle)) {
  28                 char *ret;
  29                 if ((ret = fgets(whole_buffer, 1024, handle)) == whole_buffer) {
  30                         /* sscanf implicitly strips whitespace */
  31                         if (sscanf(whole_buffer, "%s %[^\n]", dest_name, dest_value) < 1)
  32                                 continue;
  33                 } else if (ret != NULL)
  34                         die("Could not read line in configuration file\n");
  35
  36                 /* skip comments and empty lines */
  37                 if (dest_name[0] == '#' || strlen(dest_name) < 3)
  38                         continue;
  39
  40                 OPT("wlan")
  41                         wlan_interface = strdup(dest_value);
  42                 OPT("eth")
  43                         eth_interface = strdup(dest_value);
  44                 OPT("time_format")
  45                         time_format = strdup(dest_value);
  46                 OPT("battery") {
  47                         struct battery *new = calloc(1, sizeof(struct battery));
  48                         if (new == NULL)
  49                                 die("Could not allocate memory\n");
  50                         if (asprintf(&(new->path), "/sys/class/power_supply/BAT%d/uevent", atoi(dest_value)) == -1)
  51                                 die("Could not build battery path\n");
  52
  53                         /* check if flags were specified for this battery */
  54                         if (strstr(dest_value, ",") != NULL) {
  55                                 char *flags = strstr(dest_value, ",");
  56                                 flags++;
  57                                 if (*flags == 'f')
  58                                         new->use_last_full = true;
  59                         }
  60                         SIMPLEQ_INSERT_TAIL(&batteries, new, batteries);
  61                 } OPT("color")
  62                         use_colors = true;
  63                 OPT("get_ipv6")
  64                         get_ipv6 = true;
  65                 OPT("get_ethspeed")
  66                         get_ethspeed = true;
  67                 OPT("get_cpu_temperature") {
  68                         get_cpu_temperature = true;
  69                         if (strlen(dest_value) > 0) {
  70                                 if (asprintf(&thermal_zone, "/sys/class/thermal/thermal_zone%d/temp", atoi(dest_value)) == -1)
  71                                         die("Could not build thermal_zone path\n");
  72                         } else {
  73                                  if (asprintf(&thermal_zone, "/sys/class/thermal/thermal_zone0/temp") == -1)
  74                                         die("Could not build thermal_zone path\n");
  75                         }
  76                 } OPT("normcolors")
  77                         wmii_normcolors = strdup(dest_value);
  78                 OPT("interval")
  79                         interval = atoi(dest_value);
  80                 OPT("wmii_path")
  81                 {
  82 #ifndef DZEN
  83                         static glob_t globbuf;
  84                         struct stat stbuf;
  85                         if (glob(dest_value, GLOB_NOCHECK | GLOB_TILDE, NULL, &globbuf) < 0)
  86                                 die("glob() failed\n");
  87                         wmii_path = strdup(globbuf.gl_pathc > 0 ? globbuf.gl_pathv[0] : dest_value);
  88                         globfree(&globbuf);
  89
  90                         if ((stat(wmii_path, &stbuf)) == -1) {
  91                                 fprintf(stderr, "Warning: wmii_path contains an invalid path\n");
  92                                 free(wmii_path);
  93                                 wmii_path = strdup(dest_value);
  94                         }
  95                         if (wmii_path[strlen(wmii_path)-1] != '/')
  96                                 die("wmii_path is not terminated by /\n");
  97 #endif
  98                 }
  99                 OPT("run_watch")
 100                 {
 101                         char *name = strdup(dest_value);
 102                         char *path = name;
 103                         while (*path != ' ')
 104                                 path++;
 105                         *(path++) = '\0';
 106                         num_run_watches += 2;
 107                         run_watches = realloc(run_watches, sizeof(char*) * num_run_watches);
 108                         run_watches[num_run_watches-2] = name;
 109                         run_watches[num_run_watches-1] = path;
 110                 }
 111                 OPT("order")
 112                 {
 113                         #define SET_ORDER(opt, idx) { if (strcasecmp(token, opt) == 0) order[idx] = c++; }
 114                         char *walk, *token;
 115                         int c = 0;
 116                         walk = token = dest_value;
 117                         while (*walk != '\0') {
 118                                 while ((*walk != ',') && (*walk != '\0'))
 119                                         walk++;
 120                                 *(walk++) = '\0';
 121                                 SET_ORDER("run", ORDER_RUN);
 122                                 SET_ORDER("ipv6", ORDER_IPV6);
 123                                 SET_ORDER("wlan", ORDER_WLAN);
 124                                 SET_ORDER("eth", ORDER_ETH);
 125                                 SET_ORDER("battery", ORDER_BATTERY);
 126                                 SET_ORDER("cpu_temperature", ORDER_CPU_TEMPERATURE);
 127                                 SET_ORDER("load", ORDER_LOAD);
 128                                 SET_ORDER("time", ORDER_TIME);
 129                                 token = walk;
 130                                 while (isspace((int)(*token)))
 131                                         token++;
 132                         }
 133                 }
 134                 else
 135                 {
 136                         result = -2;
 137                         die("Unknown configfile option: %s\n", dest_name);
 138                 }
 139         }
 140         fclose(handle);
 141
 142 #ifndef DZEN
 143         if (wmii_path == NULL)
 144                 exit(EXIT_FAILURE);
 145 #endif
 146
 147         return result;
 148 }